Abstract
Summary
A simple method has been designed for evaluating both non-narcotic and narcotic analgesics. The method is based upon the specific antagonism of analgesics to the typical “syndrome” produced by intra-peritoneal injection of 2-phenyl-1,4-benzo-quinone in mice. The antagonism occurs at doses far below those producing depression or other toxic effects. There is also a good correlation between clinical efficacy of a number of analgesics and their relative potency as established by this method. The endpoint is sharp, and the method is simple and quantitative.
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